./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/gcd_2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b2c0c585-f919-418c-a01f-64f496f2f12b/bin/ukojak/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b2c0c585-f919-418c-a01f-64f496f2f12b/bin/ukojak/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b2c0c585-f919-418c-a01f-64f496f2f12b/bin/ukojak/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b2c0c585-f919-418c-a01f-64f496f2f12b/bin/ukojak/config/KojakReach.xml -i ../../sv-benchmarks/c/bitvector/gcd_2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b2c0c585-f919-418c-a01f-64f496f2f12b/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b2c0c585-f919-418c-a01f-64f496f2f12b/bin/ukojak --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Kojak --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ca12b384c8180063e3f1c5738f7063e9219b0df5 .............................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 10:16:31,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 10:16:31,730 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 10:16:31,740 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 10:16:31,740 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 10:16:31,741 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 10:16:31,744 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 10:16:31,745 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 10:16:31,746 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 10:16:31,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 10:16:31,748 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 10:16:31,749 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 10:16:31,749 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 10:16:31,751 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 10:16:31,752 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 10:16:31,752 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 10:16:31,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 10:16:31,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 10:16:31,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 10:16:31,756 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 10:16:31,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 10:16:31,765 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 10:16:31,766 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 10:16:31,767 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 10:16:31,768 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 10:16:31,768 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 10:16:31,768 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 10:16:31,772 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 10:16:31,772 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 10:16:31,773 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 10:16:31,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 10:16:31,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 10:16:31,774 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 10:16:31,775 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 10:16:31,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 10:16:31,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 10:16:31,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 10:16:31,776 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 10:16:31,776 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 10:16:31,777 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 10:16:31,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 10:16:31,779 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b2c0c585-f919-418c-a01f-64f496f2f12b/bin/ukojak/config/svcomp-Overflow-32bit-Kojak_Default.epf [2019-10-22 10:16:31,792 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 10:16:31,792 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 10:16:31,792 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 10:16:31,792 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ALWAYS [2019-10-22 10:16:31,793 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 10:16:31,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 10:16:31,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 10:16:31,802 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 10:16:31,803 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 10:16:31,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 10:16:31,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 10:16:31,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 10:16:31,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 10:16:31,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 10:16:31,804 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 10:16:31,804 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 10:16:31,804 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 10:16:31,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 10:16:31,804 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 10:16:31,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 10:16:31,804 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2019-10-22 10:16:31,805 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2019-10-22 10:16:31,805 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 10:16:31,805 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 10:16:31,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:16:31,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 10:16:31,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 10:16:31,810 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 10:16:31,810 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2019-10-22 10:16:31,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 10:16:31,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 10:16:31,810 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_b2c0c585-f919-418c-a01f-64f496f2f12b/bin/ukojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca12b384c8180063e3f1c5738f7063e9219b0df5 [2019-10-22 10:16:31,833 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 10:16:31,842 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 10:16:31,844 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 10:16:31,846 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 10:16:31,846 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 10:16:31,847 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b2c0c585-f919-418c-a01f-64f496f2f12b/bin/ukojak/../../sv-benchmarks/c/bitvector/gcd_2.c [2019-10-22 10:16:31,891 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b2c0c585-f919-418c-a01f-64f496f2f12b/bin/ukojak/data/f7f377b1d/e97f80e02f814674b1e93d59057dfc01/FLAG10c071d9a [2019-10-22 10:16:32,295 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 10:16:32,296 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b2c0c585-f919-418c-a01f-64f496f2f12b/sv-benchmarks/c/bitvector/gcd_2.c [2019-10-22 10:16:32,301 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b2c0c585-f919-418c-a01f-64f496f2f12b/bin/ukojak/data/f7f377b1d/e97f80e02f814674b1e93d59057dfc01/FLAG10c071d9a [2019-10-22 10:16:32,696 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b2c0c585-f919-418c-a01f-64f496f2f12b/bin/ukojak/data/f7f377b1d/e97f80e02f814674b1e93d59057dfc01 [2019-10-22 10:16:32,699 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 10:16:32,700 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 10:16:32,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 10:16:32,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 10:16:32,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 10:16:32,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:16:32" (1/1) ... [2019-10-22 10:16:32,707 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@483f0a03 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:32, skipping insertion in model container [2019-10-22 10:16:32,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:16:32" (1/1) ... [2019-10-22 10:16:32,714 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 10:16:32,726 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 10:16:32,849 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:16:32,852 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 10:16:32,919 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 10:16:32,932 INFO L192 MainTranslator]: Completed translation [2019-10-22 10:16:32,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:32 WrapperNode [2019-10-22 10:16:32,932 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 10:16:32,933 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 10:16:32,933 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 10:16:32,933 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 10:16:32,941 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:32" (1/1) ... [2019-10-22 10:16:32,946 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:32" (1/1) ... [2019-10-22 10:16:32,964 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 10:16:32,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 10:16:32,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 10:16:32,966 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 10:16:32,973 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:32" (1/1) ... [2019-10-22 10:16:32,973 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:32" (1/1) ... [2019-10-22 10:16:32,974 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:32" (1/1) ... [2019-10-22 10:16:32,974 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:32" (1/1) ... [2019-10-22 10:16:32,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:32" (1/1) ... [2019-10-22 10:16:32,980 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:32" (1/1) ... [2019-10-22 10:16:32,981 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:32" (1/1) ... [2019-10-22 10:16:32,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 10:16:32,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 10:16:32,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 10:16:32,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 10:16:32,984 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:16:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b2c0c585-f919-418c-a01f-64f496f2f12b/bin/ukojak/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2019-10-22 10:16:33,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 10:16:33,045 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 10:16:33,299 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 10:16:33,300 INFO L284 CfgBuilder]: Removed 9 assume(true) statements. [2019-10-22 10:16:33,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:33 BoogieIcfgContainer [2019-10-22 10:16:33,301 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 10:16:33,301 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2019-10-22 10:16:33,301 INFO L271 PluginConnector]: Initializing CodeCheck... [2019-10-22 10:16:33,326 INFO L275 PluginConnector]: CodeCheck initialized [2019-10-22 10:16:33,326 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:33" (1/1) ... [2019-10-22 10:16:33,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 10:16:33,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:33,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 13 states and 15 transitions. [2019-10-22 10:16:33,375 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2019-10-22 10:16:33,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 10:16:33,377 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:33,522 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:33,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:33,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 12 states and 14 transitions. [2019-10-22 10:16:33,588 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-10-22 10:16:33,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 10:16:33,588 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:33,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:33,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:33,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:33,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 11 states and 13 transitions. [2019-10-22 10:16:33,658 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2019-10-22 10:16:33,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 10:16:33,658 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:33,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:33,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:33,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:33,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 13 states and 16 transitions. [2019-10-22 10:16:33,794 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2019-10-22 10:16:33,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-10-22 10:16:33,795 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:33,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:33,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:33,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:33,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 12 states and 15 transitions. [2019-10-22 10:16:33,924 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 15 transitions. [2019-10-22 10:16:33,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-10-22 10:16:33,925 INFO L428 CodeCheckObserver]: Error Path is FOUND. [2019-10-22 10:16:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 10:16:33,945 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 10:16:34,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2019-10-22 10:16:34,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 9 states and 11 transitions. [2019-10-22 10:16:34,091 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 11 transitions. [2019-10-22 10:16:34,091 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 10:16:34,091 WARN L425 CodeCheckObserver]: This Program is SAFE, Check terminated with 6 iterations. [2019-10-22 10:16:34,100 INFO L771 CodeCheckObserver]: All specifications hold 4 specifications checked. All of them hold [2019-10-22 10:16:34,135 INFO L575 CodeCheckObserver]: Invariant with dag size 1 [2019-10-22 10:16:34,139 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 22.10 10:16:34 ImpRootNode [2019-10-22 10:16:34,139 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2019-10-22 10:16:34,139 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 10:16:34,139 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 10:16:34,139 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 10:16:34,140 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:16:33" (3/4) ... [2019-10-22 10:16:34,143 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 10:16:34,152 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-10-22 10:16:34,153 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-10-22 10:16:34,153 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-10-22 10:16:34,201 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b2c0c585-f919-418c-a01f-64f496f2f12b/bin/ukojak/witness.graphml [2019-10-22 10:16:34,201 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 10:16:34,203 INFO L168 Benchmark]: Toolchain (without parser) took 1502.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 947.1 MB in the beginning and 1.0 GB in the end (delta: -70.8 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:34,204 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 10:16:34,204 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 947.1 MB in the beginning and 1.1 GB in the end (delta: -174.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:34,205 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:34,205 INFO L168 Benchmark]: Boogie Preprocessor took 16.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:34,210 INFO L168 Benchmark]: RCFGBuilder took 318.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:34,211 INFO L168 Benchmark]: CodeCheck took 837.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.4 MB). Peak memory consumption was 72.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:34,211 INFO L168 Benchmark]: Witness Printer took 62.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2019-10-22 10:16:34,215 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck: - StatisticsResult: Ultimate CodeCheck benchmark data CFG has 1 procedures, 13 locations, 4 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 6, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 0 SDtfs, 132 SDslu, 0 SDs, 0 SdLazy, 496 SolverSat, 116 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 134 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, traceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 271 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 15]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 231.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 947.1 MB in the beginning and 1.1 GB in the end (delta: -174.6 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 32.48 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 318.30 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * CodeCheck took 837.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 72.4 MB). Peak memory consumption was 72.4 MB. Max. memory is 11.5 GB. * Witness Printer took 62.33 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. RESULT: Ultimate proved your program to be correct! Received shutdown request...